import java.util.Scanner;

/**
   Reads a string and prints out all vowels contained in that string.
   Vowels are A E I O U a e i o u. 

   Input: the value of s, a string
   Output: a string containing all the vowels in s,
      in the order in which they appear in s
*/
public class GetVowels
{
   public static void main(String[] args)
   {
      String r = "";
      
      Scanner in = new Scanner(System.in);
      String s = in.nextLine();

      // your work here
      int l = s.length();
      for(int i=0;i<l;i++){
         if(s.charAt(i) == 'A' || s.charAt(i) == 'E' || s.charAt(i) == 'I' || s.charAt(i) == 'O' || s.charAt(i) == 'U' || s.charAt(i) == 'o' || s.charAt(i) == 'o' || s.charAt(i) == 'i' || s.charAt(i) == 'e' || s.charAt(i) == 'a')
         r += s.charAt(i);
      }

      System.out.println(r);
   }
}